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We have calculated the dielectric constant of TiO2 film from the value of n anbd k using the optical reflectance data. We did not carry out any electrical measurement. From the dielectric values...
16 April 2019 884 6 View
By Mechanical exfoliation, using scotch type on SiO2 subtrate i am getting Monolayer of MoS2 (2-3 micron). Is there any trick or Method to get large size Monolayer MoS2
15 April 2019 9,726 2 View
15 April 2019 6,223 2 View
Usually HOPG is used for calibrating Kelvin probe tip work-function. However I found if operated in the air, HOPG surface will quickly adsorb air species and the measured contact potential drifts...
09 April 2019 6,020 3 View
Generally Substances with a forbidden band widths Wg < 2eV are considered to be semiconductors while those substances for which Wg > 3eV belong to dielectrics. Now, the question goes like if...
08 April 2019 3,938 4 View
While calculating atomic concentration from SIMS I found rsf elements table for Si. But the RSF table is different for each matrix and impurity element. I need that for InP
04 April 2019 8,073 2 View
04 April 2019 3,923 4 View
04 April 2019 6,322 5 View
I want to calibrate the work-function of our Kelvin probe using HOPG as a reference sample. For the commonly used SPI HOPG, there are three grades, SPI-1, SPI-2 and SPI-3. Is there any difference...
04 April 2019 9,846 4 View
Hello everyone! If an oxygen vacancy is the lack of an oxygen in a site in the lattice, what is a possible explanation for the ability to probe the presence/quantity of oxygen vacancies in an...
04 April 2019 5,989 13 View
What is the procedure or formulas for the same?
04 April 2019 5,793 3 View
If we used ternary compound semiconductor as buffer layer than alloy disorder scattering formula e.g. in AlGaN/GaN , GaN replace by InGaN i.e. AlGaN/InGaN.
04 April 2019 3,932 3 View
What can be a possible explanation for observing increasing oxygen vacancies in a metal oxide film (eg: Cu2O) deposited using ALD or CVD when the deposition temperature is increased? As I...
04 April 2019 8,569 5 View
I am prepared in the spray pyrolysis technique Al-doped TiO2 thin films samples. Al is a p-type doped and TiO2 is an n-type semiconductor. N-types and P-types channels will occur in our...
04 April 2019 7,114 12 View
From projected density of states it is found that the top most valence band and the lowermost conduction band arise from Fe-3d and Ti-3d orbitals, respectively. d→d transition is forbidden as we...
27 March 2019 2,589 3 View
For Tauc Plot, (ahv)n/2 vs hv, from where do we get the value of absorption coefficient for that particular material. Is the value of absorbance same as absorption coefficient for solid samples ?...
20 March 2019 2,375 5 View
03 March 2019 1,321 4 View
Which transition metal out of Mn, Cr and V can increase or decrease it's P-type character after 1-10% doping.
03 March 2019 2,432 3 View
If the band gap is tuned with the help of doping then how it may be useful in energy storage application?
03 March 2019 5,580 8 View
03 March 2019 4,587 6 View
2D atomic materials, such as semi-conductors based upon graphene, have now been shown to exhibit quantum scale interactions with emf sources. Specifically in the range of visible light. The...
03 March 2019 9,212 4 View
Dear all, Is it reliable to use the spectral response of a semiconductor photodetector to estimate it’s bandgap value and type (direct and indirect) ? Please support your answer with a proper...
03 March 2019 1,848 7 View
Commonly ITO and FTO are uses as TCO in Perovskite Solar Cell and ZnO as ETL, bue also ZnO as TCO is used in Semicondutors can you please share with me some reference I want to clear my concept...
03 March 2019 2,537 3 View
In particular I would like to ask about the gold nanocluster. Do they need to have high quantum yield for photocatalysis application?
03 March 2019 8,595 5 View